.swiper {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
}

.swiper.none {
  display: none;
}

.img {
  width: 100vw;
  height: 100vh;
}


.btn {
  position: absolute;
  left: 50%;
  bottom: 110px;
  transform: translateX(-50%);
}